Audible signal device of the vibratory-diaphragm type



J. F. MONNOT ET AL. v AUDIBLE SIGNAL DEVICE OF THE VIBRATORY DIAPHRAGM TYPE.

men mm: 24. law.

when it is desired togive a signal. In the example shown, the buckling, of the diaphragm is effected through the medium oi? a spring Z acting upon the lever c and the meansfor enabling the diaphragm to occupy the position shown in dotted lines so that the button thereof can make contact with the teeth of the rotor, comprise a pin on which is provided with a head a whereby the said pincan beioperated by hand and actuate the lever c againstthe action or the spring Z. The said pin m may also constitute the core of an electromagnct p arranged in an electric circuit (Figure 2) adapted to be opened. and closed by a switch 9, the closing of the circuit-causing the pin m to operate upon thelever c and enable a signal to be given, the duration of the sound produced being dependent on the length or" time which the pin m is maintained in on gagement with the lever c. Stops r serve to limit the movement of the said lever.

What we claim and desire to secure by Letters Patent of the United States i w 1. An audible code signalling device consisting in. the combination of a vibratory sound emitting diaphragm, a rotor adapted to vibrate said diaphragm, a motor for driving said rotor continuously at a predetermined speed, means engaging with the pe riphery of said diaphragm and supporting it at a fixed distance from said rotor, means for deflecting the central portion of said diaphragm out of contact with said rotor and for'permitting it to make contact there with only when a signal is to be sounded, and'ineans whereby the predetermined speed of the continuously driven rotor is maintained unchanged when the diaphragm makes contact therewith so that a sound of constant pitch will be emitted at each sig nal.

2. An audible code signalling device consisting in the combination of a vibratory sound emitting diaphragm, a rotor adapted to vibrate said diaphragm, a. motor for driving said rotor continuously at a predetermined speed, means engaging with the periphery of said diaphragm and supporting it at a fixed distance fromsaid rotor, means for deflecting the central portion of said diaphragm out of contact with said rotor and for permitting it to make contact therewith only when a'signal is to be sounded, and a fly wheel driven by said motor for maintaining unchanged the predetermined speed of the continuously driven rotor when the diaphragm makes contact therewith so that a sound of constant pitch will be emit ted at each signal.

3. An audible code signalling device consisting in the combination of a vibratory sound emitting diaphragm, a rotor adapted to vibrate said diaphragm, a motor for driving said rotor continuously at a predetermined speed, means engaging with the pc-- riphery of said diaphragmand supporting it at a fixed distance from said rotor, me chanical means whereby the diaphragm is normally maintained in a buckled condition out of contact with said rotor, means whcrcby said diaphragm buckling means can be actuated for permitting the diaphragm to assume condition in which it will make contactwith. the rotor to sound: a signal, and means wherebythe predetermined speed otthe continuously driven rotor is maintained unchanged when the diaphragm makes contact therewith so that a sound of constant pitch will be emitted ateuch signal.

4. An audible code signalling device consisting in the combination of a viln'utory sound omitting diaphragn'i, a rotor adapted to vibrate said diaphragm, a motor i or driving said rotor continuously at a predetermined speed, means engaging with the pcriphery oi. said diaphragm and supporting it at such a fixed distance from said rotor that it can be moved out of contact there with by being buckled, a spring influenced lever for buckling the diaphragm and maiutaining it in its buckled condition, means for actuating said lever for permitting the diaphragm to assume. a condition in which it will make contact with the rotor to sound a signal and. means whereby the predetermined speed of the continuously driven ro tor is maintained unchanged when the diaphragm makes contact therewith so that :1 sound of constant pitch will be emitted at each signal.

in audible code signalling device consisting in the combination of a vibratory sound omitting diaphragm, a rotor adapted to vibrate said diaphragm, a motor for driving said rotor continuously at a predetermined speed, means engaging with the pcriphery of said diaphragm and supportin it at such a fixed distance from said rotor t mt it can be moved out of contact tl'icrewith by being buckled, a diaphragm actuating level, a spring adapted to co-operate with said lever and cause it to buckle the diaphragm and maintain it in its buckled condition. electrical means for actuating said lever and permitting the diaphragm to assume a condition in which it will make contact with the rotor to sound a signal, and means whereby the 1nedetermined speed of the continuously driven rotor is nmintained unchanged when the diaphragm .makes contact therewith so that a sound. of constant pitch will be emitted at each signal.

6. An audible code signalling device consisting in the combination of a vibratory sound emitting diaphragm, a rotor ada to vibrate said diaphragm, a motor for riving said rotor continuously at a predetermined speed, means engaging with the Illll atinas buckled condition, an electro-magnet terming part t an electric circuit and adapted to actuate said lever against the action ot said spring to enable the diaphragm to assume a condition in which it will make contact with the rotor to sound a signal, a switch for opening and closing said circuit, and means whereby the predetermined speed or the continuously driven rotor is maintained unchanged when the diaphragm makes contact therewith so that a sound of constant pitch will be emitted at each signail.

7. an audible code signalling device consisting in the combination. out a vibratory sound emitting diaphragm, a rotor adapted to vibrate said diaphragm, a motor tor driving said rotor continuously at a predetermined speed, means engaging with the periphery f said diaphragm and support ing it at such a fixed distance from said rotor that it can be moved out of contact therewith by being buckled, a diaphragm actuating lever, a spring adapted to co operate with said lever and cause it to buckle the diaphragm and maintain it in its buckled condition, an electro magnet forming part of an electric circuit, a core piece forming part of said electroanagnet and adapted to be operated manually when the circuit is open to actuate said lever against the action of said spring and enable the diaphragm to assume a condition in which it will make contact with the rotor to sound a signai, a switch for opening and closing said circuit, and means whereby the predetermined speed of the continuously driven rotor is maintained unchanged when the diaphragm makes contact therewith so that a sound of constant pitch will be emitted at each signal.

8. An audible code signalling device consisting in the combination of a vibratory sound emitting diaphragm, a rotor adapted to vibrate said diaphragm, a motor driving said rotor continuously at a preda termined speed, means engaging With the periphery oisaid diaphragm and supporting it at such a fixed distance from said rotor that it can be moved out of contact therewith by being buckled, a diaphragm actuating lever, stops tor limiting the movement of said lever, a spring adapted to cooperate with said lever and cause it tobuckle the diaphragm and maintain it in its buckled condition, an electro-magnet forming part of an electric circuit, a core piece forming part of said electro-magnet and adapted to be operated manually when the circuit is open to actuate said lever against the action of said spring and enable the diaphragm to assume a condition in which it will make contact with the rotor to sound a signal, a switch for opening and JOHN FERltE-OL lilONNOT, EDWARD TINDALL COOK. 

